package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.dao.PermissionDao;
import com.itheima.dao.RoleDao;
import com.itheima.dao.UserDao;
import com.itheima.pojo.Permission;
import com.itheima.pojo.Role;
import com.itheima.pojo.User;
import com.itheima.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Set;


@Service(interfaceClass = UserService.class)
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserDao userDao;
    @Autowired
    private RoleDao roleDao;
    @Autowired
    private PermissionDao permissionDao;

    @Override
    public User findByUsername(String username) {
       User user = userDao.findByUsername(username);
       if(user==null){
           return null;
       }
        Integer userId = user.getId();
       //根据id查询对应角色
       Set<Role> roles = roleDao.findByUserId(userId);
        for (Role role : roles) {
            Integer roleId = role.getId();
            //根据角色id查询相关权限
          Set<Permission> permissions = permissionDao.findByRoleId(roleId);
          role.setPermissions(permissions); //关联权xian
        }
        user.setRoles(roles); //用户关联角色
        return user;
    }
}
